[llvm] [LoongArch] lower vector shuffle to shift if possible (PR #132866)

[via llvm-commits]

tangaac wrote:

Here are the files optimized by this pr on llvm-test-suite (lasx):
https://github.com/tangaac/loong-opt-cov-ts/commit/8df0d5c7d5b08e8d0fb2f4cbe0b5f3ae1f3bdcdd

https://github.com/llvm/llvm-project/pull/132866